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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 02-22-2015, 05:41 PM   #21 (permalink)
GM4Life86
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I have looked at the conversion kits through different online retailers. Prices seem to very between 800-2000$. I wonder how big or small of a project it is to convert.

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Old 02-22-2015, 07:11 PM   #22 (permalink)
rob1
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The R&R itself is a big job, I can't imagine converting to an older pump. I'm inclined to think that any pump failures are bad luck as long as you're keeping up with your maintence - similar to any other failure.

I've got one in my stall right now at work with the metal filings from the pump (only second one we've seen) and I'll keep my eyes peeled for any possible causes but I think the general will deny the warrenty claim if I disasemble the old pump.

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Old 02-22-2015, 07:39 PM   #23 (permalink)
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Kennedy has lift pumps, no drill installations and it is a silent pump.
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Old 02-22-2015, 07:56 PM   #24 (permalink)
GM4Life86
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I have looked at the Kennedy pumps. Im not sure why exactly but to me they do not seem very "user Friendly". Could just be my lack of experience. I see everyone ranting about how good they are! They definitely seem a little more difficult to install then the Air dog or the Fass pumps. It could just be that they are designed different.
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2011 Silverado CCLB 4x4 Duramax w/ 740,500 Miles, S&B Intake, EFI Live/MotorOps, DP Back Flo-Pro 4" straight pipe, EGR Disabled, 275/70/18 GreenBall Trail Hog Tires. Daily Driver

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Old 02-23-2015, 12:31 AM   #25 (permalink)
alboy
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Would GM not change the part # slightly on a updated pump assembly say from a 11/12 to a 15? Maybe someone that has access to parts info could fill us in .
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Old 02-24-2015, 09:13 PM   #26 (permalink)
rob1
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Looking at the old pump and the new one I can see some differences just looking at them, here's pics...
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Old 02-24-2015, 09:15 PM   #27 (permalink)
rob1
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New pump (sorry for multiple posts not letting me do more than one pic from phone)

As you can see it's already installed.

...of course it displays picture upside down...
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Last edited by rob1; 02-24-2015 at 09:22 PM.
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Old 02-24-2015, 09:21 PM   #28 (permalink)
rob1
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This is the fuel pressure regulator #1, it lives in the top of the pump. May have to magnify to see the shiny shiny in it, there's also some goo in it. I've seen pics that are much worse than this one - this one was caught early.
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Old 02-24-2015, 10:51 PM   #29 (permalink)
TheBac
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Different gear pump design. Different main housing?
Looks like fine particles are getting past the filter? What the heck is up with that?
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Old 02-24-2015, 11:23 PM   #30 (permalink)
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Reading bulletins the pump is the primary failure causing metal filings throughout fuel system and particles flow through return lines to tank, which then gets recycled to feed side again - thus particles through whole system.

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